Highly Efficient Synthesis of Quinoxalinone-N-oxide via Tandem Nitrosation/Aerobic Oxidative C–N Bond Formation
摘要:
An efficient method for constructing quinoxalinone-N-oxides from cyanoacetanilides has been developed. This transformation can be achieved using inexpensive reagents and molecular oxygen under mild conditions, thus offering a practical pathway to quinoxalinone-containing pharmaceuticals such as ataquimast and opaviraline.
A convenient C−Hamination of quinoxalin‐2‐ones has been developed. This transformation provides concise access to 3‐aminoquinoxalin‐2(1H)‐ones with a broad tolerance of functional groups, utilizing TMSN3 as an amino source under simple and mildconditions. The target 3‐aminoquinoxalin‐2(1H)‐ones are important intermediates for the synthesis of biologically active 3‐N‐substituted quinoxalin‐2‐one derivatives
Photoinduced Dehydrogenative Amination of Quinoxalin-2(1<i>H</i>)-ones with Air as an Oxidant
作者:Haoran Jiao、Yue Jing、Kaikai Niu、Hongjian Song、Yuxiu Liu、Qingmin Wang
DOI:10.1021/acs.joc.3c02781
日期:2024.4.19
A facile and eco-friendly photoinduced dehydrogenativeamination of quinoxalin-2(1H)-ones with aliphatic amines without any metal, strong oxidant, and photocatalyst has been established for the first time. This reaction proceeding efficiently with air as the sole oxidant at room temperature obtains a wide range of 3-aminoquinoxaline-2(1H)-ones in high yields with excellent functional group tolerance
首次建立了一种简便、环保的喹喔啉-2( 1H )-酮与脂肪胺光诱导脱氢胺化反应,无需任何金属、强氧化剂和光催化剂。该反应在室温下以空气作为唯一氧化剂有效进行,以高产率获得多种 3-氨基喹喔啉-2(1 H )-酮,并具有优异的官能团耐受性。机理研究表明,喹喔啉-2(1 H )-酮作为光敏剂具有有趣的作用,从而消除了对外部光催化剂的需求。
Organic Letters 2011, 13, 6280-6283
作者:
DOI:——
日期:——
TREATMENTS OF B-CELL PROLIFERATIVE DISORDERS
申请人:Rickles Richard
公开号:US20090053168A1
公开(公告)日:2009-02-26
The invention provides compositions and methods for the treatment of B-cell proliferative disorders that employ an A2A receptor agonist or one or more PDE inhibitors. The methods and compositions may further include an antiproliferative compound.
COMBINATIONS FOR THE TREATMENT OF B-CELL PROLIFERATIVE DISORDERS
申请人:Rickles Richard
公开号:US20090047243A1
公开(公告)日:2009-02-19
The invention features compositions and methods employing combinations of an A2A receptor agonist and a PDE inhibitor for the treatment of a B-cell proliferative disorder, e.g., multiple myeloma.